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(No Model.)

H. WYMAN.

SHEDDING MECHANISM FOR LOOMS.

No. 336,683. Patented Feb. 23, 1886.

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U ITED STATES PATENT OFFICE.

HORACE WYMAN, OF \VORGESTER, MASSACHUSETTS, ASSIGNOE TO GEORGE CROMPTON,OF SAME PLACE.

SHEDDING MECHANISM FOR LOOMS.

SPECIFICATIONforming part of Letters Patent No. 336,683, dated February23,1886.

Application filed January 22, 1883. Serial No. 82,354. (No model.)

To aZZ whom it may concern:

Be it known that I, HORACE WYMAN, of the city and county of Worcester,State of Massachusetts, have invented an Improvement in SheddingMechanism for Looms, of which the following description, in connectionwith the accompanying drawings, is a specificat-ion, like letters on thedrawings representing like parts.

This invention relates to the class of loom represented in United StatesPatent N 0. 217,589, July 15, 1879, to which reference may be had, andhas for its object improvements in means for operating the hooked jackswhich I 5 are engaged by the lifters.

In the patent referred to the hooked jacks are slotted to receivethrough them certain rods having collars, which, as the rods are liftedby levers actuated by the pattern surface or chain, operate to lift thesaid hooked jacks,

there being one rod and lever for each jack of the double series ofjacks.

In United States Patent No. 243,361- the slots in the hooked jacks areomitted, and the 2 5 jacks are made thin, and each jack of each seriesis directly operated by one lever of one of two series of levers, thoselevers of the lower set being acted upon by the pattern chain orsurface, while those of the upper set 0 are moved by rods arrangedbetween them and the lower set of levers.

In this my present invention the hooked jacks in the lowermost series ofhooked jacks are lifted by levers substantially as in the 5 patent lastreferred to; but I have dispensed with one of the sets of levers thereinshown, and have provided wires or rods lifted directly by the leversresting upon the pattern chain or surface, the upper ends of the saidrods hav- 0 ing flanges or collars to support the under sides of thehooked jacks of the upper series of hooked jacks, the said flanges orcollars being larger than the spaces in the grid through which thehooked jacks reciprocate, so that 5 the rods are held in place by thegrid.

Figure 1 represents in vertical section portion of a loom sufficient,when taken in con-' nection with the patents referred to, to enable oneconversant therewith to understand my present invention. Fig. 2 is asection of Fig. l on the dotted line w as. Fig. 3 is a detail of one endof one of the connectors, and Fig. 4 a detail in top view of the rearend of one of the levers for moving the hooked jacks.

In the drawings I have shown but one 5 5 hooked jack of each series andthe devices for moving them. The levers x, connectors f, stops 23 24,lifters t 8 which also act at times to let the harness-lever connectedwith them descend, and the shaft 0 for moving the pat- 6o tern surfaceor chain d, are as in the patent No. 217,589, referred to, wherein thelike parts are designated by like letters, and the parts referred towill in practice be actuated by devices such as shown in the saidpatent. 6

The hooked jacks d" of the upper series of jacks and the hooked jacks eof the lower series of jacks are the same as the hooked jacks on thepatent last referred to, except that they are not slotted, but are madenar- 0 row. Each jack is pivoted to a connector, f

Each lever a, pivoted at a and acted upon by the pattern surface orchain d is provided at its front end with a toe, 2, which acts directlyagainst the under side of a hooked jack, 7 5 e, to lift it, and, asherein shown, the said lever is also provided with a recess or socketmade in an ear, 3, to receive the lower end of a rod, 1), extendedupward, and provided with a flange or collar, 1), on which rests theunder 30 side of the upper hooked jack, d. The hooked jacks e d areextended forward, each through and guided in a space or slot in one ofthe grids c or 0 The flange or collar 1) of the rod 12 is arranged atthe rear of the upright parts or bars of the grid 0, and, the said headbeing larger than the space in the grid through which the jack d isreciprocated. is held in place by the grid, so that it cannot be drawnor moved forward with the jack, 0 and it cannot be moved backward withthe jack because of the bottom bar, 4.

By moving the jack d directly by a rod resting on a lever acted upondirectly by the pattern-surfacel am enabled to dispense with 9 5 theupper set of levers shown in Patent No. 243,361, referred to.

The rubbing of the split ends of the connectors f against the stops 2425 as the said connectors are vibrated soon wears the said connectorsaway so as to permit the rear ends of the hooked jacks to strike againstthe said stops, thus interfering with their easy movement. To obviatethis I have provided the connectors at each end with an enlargement, (1(shown in detail, Fig. 3,) which comes in contact with the said stopsand receives the Wear, thus increasing the durability of the apparatus.The lever a might be divided vertically in the direction of its length,thus making two levers side by side, one of which should retain the toe2 and the other the recessed ear 3 without departing from my invention,one pattern-pin operating both levers.

1. The lever, the pattern surface, the hooked jack 6, resting on thesaid lever, the connector, the hooked jack d, and the flanged rod tosupport the latter jack, combined with a harness-lever attached to theconnector, and

HORACE VVYMAN.

\Vitnesses:

J. B. SYME, J. A. \VARE.

